Gudasoft

Continue reading

Continue reading

We are migrating from Cloudflare to route53 and want to make sure that all the records are migrated correctly.

records = %w(
  www
  blog
)

records.each do |record|
  aws = `dig +noall +answer www.example.com |tr '\t' ' ' | cut -d' ' -f1,3,4,5`
  cf = `dig +noall +answer www.example.com @1.1.1.1|tr '\t' ' ' | cut -d' ' -f1,3,4,5`

  if aws != cf
    puts("\nerror:")
    puts(aws)
    puts(cf)
  end
end

Do you enjoy switching between us-east-1 and eu-central-1? If not here are some shortcuts which might make your day.

function change_region(){
  folder_name=`pwd`
  new_region=$1
  old_region=$2
  new_folder="${folder_name/$old_region/$new_region}"
  cd $new_folder
}

function production(){
  change_region 'terraform_production' 'terraform_development'
}


function development(){
  change_region 'terraform_development' 'terraform_production'
}

function us(){
  change_region 'us-east-1' 'eu-central-1'
}


function eu(){
  change_region 'eu-central-1' 'us-east-1'
}

Continue reading

If you want free hosting, I mean free, not-cheap or other kinds of hosting. The only option which I know for now is Heroku.

There are some websites which advertise them as free rails hosting but they are paid.

So stay safe with the good old, slow on boot but very stable and enjoyable to work Heroku!

Continue reading

Hello folks,

You have just used the pgloader to import some database in postgres but when you do

space_util=# \dt
Did not find any relations.

The problem is that you have to fix the search path for your tables.

Here is how to do it (or check the link for more ways)

space_util=# ALTER DATABASE space_util SET search_path = space_util,public;
space_util=# \dt
                                    List of relations
   Schema   |                           Name                           | Type  |  Owner   
------------+----------------------------------------------------------+-------+----------
 space_util | some_nice_table | table | postgres

…or one-day just to add one line of code

s3fs.S3FileSystem.cachable = False

Adding caching under the good and not mentioning it in the documentation – that is called a dirty trick.

My case was lambda processing s3 files. When a file comes on s3 lambda process the file and triggers next lambda. The next lambda works fine only the first time.

The first lambda is using only boto3 and there is no problem.

The second lambda use s3fs.

The second invocation of the lambda is using already initialized context and the s3fs thinks that it knows what objects are on s3 but it is wrong!

So…. I found this issue – thank you jalpes196 !

Another way is to invalidate the cache…

from s3fs.core import S3FileSystem


S3FileSystem.clear_instance_cache()
s3 = S3FileSystem(anon=False)
s3.invalidate_cache()

Continue reading